Coupling-shank.



No. 832,943. BATENTED OUT. 9, 1906. J. 0. WHITRIDGE. COUPLING SHANK.

APPLIOATION FILED FEB.- 28, 1905.

, To all whom it may concern:

UNITED STATES PATENT OFFICE.

7 'JOHN CLIFFORD vvnn s rgfdr ootonsus, OHIO.

' COUPLlNG-Sl-IANK.

Patented Oct. 9, 1906.

Applicatihn filed I'dbruary 28,1905- Serial No. 247.787.

Be it known that I, JOHN CLIFFORD WHIT- of Franklin and State of Ohio, have invented certain new and useful Improvements-'in' Coupler-Shanks and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

M .invention relates to an improved coupler-s ank, the ob'ect of the invention being to construct a hollow shank with a wide contacting surface or bearing for the pin or key which connects the shank with the draftgear, and thereby prevent wear of the parts and consequent lost motion and also by such construction strengthen this portion of the shank.

With this object in view the invention consists in certain novel features of construction and combinations and arrangements of parts, as will be more fully hereinafter described, and pointed out in the claims. In the accompanying drawings, Figure 1 is a view in side elevation, illustrating my improvements. Fig. 2 is a top plan view. F g. 3 is a view section on the line y y of Fig. 2, and Fig. 4 is a view in section on the line a: a: of Fig. 1.

1 represents the coupler-shank, having the enlarged end 2 made with openings 3 to receive securing-bolts.

The shank 1 com rises one integral casting having elongated s ots or openings 4 in its sides to receive the key or pin connecting the coupler with the draft-gear. These slots or o enings 4 have strengthenin -ribs around t em on the outer face of the s ank to compensate for the weakened end due to the openings or slots, and inte ral webs or ribs 6 and 7 connect the walls 9 said openin s or slots and extend from side to side 0 the shank and form a sleeve or bearin to receive the key or pin and present a wi e wearing-face to prevent wear or reduce the wear to a minimum. The upper and lower webs or ribs 7 may be made with openings lighten the shank, or these webs may e dispensed with entirely, if preferred. Shanks, as heretofore made, without these connecting webs or ribs soon become worn at the slots with the walls of the latter.

or o enings 4 in the sides of the shank and resu t in considerable lost motion, which necessitates the discarding of the coupler, though it may be perfect in all other respects, and by constructing the shank 'as above explained the wear will be slight, if any, the shank will be. materiall strengthened, the

' key or pin will not be lia le to become out or notched by the shank-walls, and the life of the coupler will be materially lengthened.

Sli ht.changes might be made in the general orm and arrangement of the parts described without departing from my invention, and hence I do not restrict myself to the recise details set forth, but consider myse f at liberty to make such slight changes and alterations as fairly fall within the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A hollow coupling-shank provided in its side walls with elongated slots, each of said slots closed, at both ends, webs projecting inwardly from each side wall coincident with the ends of each of said slots, and ribs projecting outwardly from each side wall of the shank, coincident with the ends of each of said slots.

2. A hollow coupling-shank provided in its side walls with elongated slots, each of said slots closed at both ends, webs projecting from the side walls of the. shank coincident with the walls of said slots throughout the full extent of slot-walls, and ribs projecting outwardly from the side walls of the shank and extending around the slots coincident 3. A hollow cou ling-shank having slotsin its side walls, an cross-webs extending the full distance of the walls of the slots between the side walls of the shank and formin substantially full bearing-surfaces for the ey to abut against. I

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

JOHN CLIFFORD WHITRIDGE.

Witnesses:

.GEo. G. MERRING, F. .G. BENNETT. 

